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Finding the Fourth Proportional to 853,363.82, 1,279,294.22 and 348,349.28

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Solution

The fourth proportional to 853,363.82, 1,279,294.22 and 348,349.28 is: 522,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,363.82 : 1,279,294.22 = 348,349.28 : x
  2. Step 2: Convert to fraction form
    853,363.82/1,279,294.22 = 348,349.28/x
  3. Step 3: Cross multiply
    853,363.82x = 1,279,294.22 × 348,349.28
  4. Step 4: Simplify right side
    853,363.82x = 445,641,214,919.56
  5. Step 5: Solve for x
    x = 445,641,214,919.56/853,363.82
  6. Step 6: Final answer
    x = 522,217.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.